phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 2

INSERT INTO forum_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('9673c86ab6e1b2b415c28b1355c3d723', -1, 1717243245, 1717243245, '12d849db', 1, 0, 0)

Line : 187
File : sessions.php